The OP further added that when he opened the sound panel, the following alert popped to the screen: Windows detected that the improvements of the following device (my audio board) are causing problems and were disabled. Do you want to re-enable them?

Indeed, the OP said that his sound card was old but it was compatible with all the previous builds, including 1809 /1803 /1709 /1607. So, this fact should not create any problems.